Liner for centrifugal liquid-separators.



1%. 822,964 PATENTED JUNE 12, 1906. B. LJUNGSTRGM. LINER FOR GENTRIFUGAL LIQUID SEPARATORS.

APPLICATION FILED 143713, 1906.

UNITED STATES PATENT OFFICE.

' BIRGER LJUNGSTROM, or STOCKHOLM, SWEDEN, ASSIGNOR TO AKTIE- sonacsr SEPARATOR, or sTooKsoLM, SWEDEN.

LINER FOR OENTHIFUGAL LlQUID-SEPARATORS.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed May 8, 1906. Serial No 253,666.-

To atl whom it may concern.-

Be it known that I, Bmonn LJUNosrnoM, a subject of the Kin of Sweden and Norway, residing at Stockho In, Sweden, have invent ed certain new and useful Improvements in Liners for Centrifugal Li old-Separators; and I do hereb declare the followin to be a full, clear, an exact description o the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin drawings, and to letters of reference mar 'ed thereon, which form a part of this specification.

It is well known that the skimming capacity of a centrifu al bowl is considerably increased by dividing the bulk of the milk, by insertion of conical lates or the like, in a ra-. dial direction into t 'n laminae 0r strata and that the se arating process takes place the easier the t nor the lamina: or strata are. There is, however, a certain limit which thereby may not be exceeded. The cream is namely a slow-fiowing liquid, and if the space between the plates exceeds a certain limitthe cream passes only with difficulty and relatively slow between the plates, and the skimming capacity thus becomes decreased. For the purpose of increasing the number of plates to be inserted in a bowl of fixed height the thickness of the plates has been reduced as much as possible; but also in this respect a certain limit must be fixed, depending on the stability to be given to such plates for preventing them from being deorrned by the action of the centrifugal force or in cleansing them.

The present invention has for ob'oct to increase the number of insertion-plates, and thus the number of laminae or strata, without decreasing the solidity of the plates and without checking the cream separated in the spaces between the plates'in its flowing inwardly toward the center of the bowl. For this purpose the division-plates are made de creasing in thickness from their outer to their inner ends, and in this way the plates may be placed nearer each other without decreasing the spaces for the inwardly-fiowin cream. The spaces between the plates thus 36011185 smallest at the eriphery of the head, where the outflowing iquld essentially consists of blue milk, which is nick-flowing, and greatest at the center of the bowl, thus leaving increasing in height om the peri hery to the center of the bowl, thus leaving t e necessary space for the separated cream in proportion to its separation and formin a thicker layer. It is hereby possible to increase the number of plates in a bowlof fixed height,

and thus to increase proportionally the skimming capacit creasing the stabi ity of the plates. Preferably both the inner and the outeredges of the plates are thicker than the plate itself nearest to the said edges, as shown in Fig 2,

in order to increase the stability of the'plstes. This has no influence on the escape of the cream and the skim-milk.

I do not limit m invention to liners consistin of conical p ates, the same being applicab e to all division contrivances by which the bulk of the rotating liquid is divided in the radial direction into thin laminie or strata.

What I claim is v I. The combir'iation of a centrifugal separator bowl with division-plates intersectin both radial horizontal and radial vertica lanes of the bowl, said plates continually decreasing in thickness from the outer to the inner ends and having their outer edges bent outwardi and their inner edges bent inwardiy, t 'e inner edge being thicker than the plate itself nearest said edge.

2. The combination of a centrifugal sepa rater-bowl with division-plates intersectin both radial horizontal and radial vertica planes of the bowl, said plates continually decreasing in thickness from the outer to the inner ends and having their outer edges bent outwardl and their inner-edges bent inwardly, t e outer edge being thicker than the plate itself nearest said edge.

3. The combination of a centrifugal sepa rator-bowl with division-plates interseetin both radial horizontal and radial vertica of the bowl without del loo planes of the bowl, said plates continually In testirnon that I plaim the foregoing as decreasing in thickness from the outer to the my invention have signed my name in presinner ends and having their outer edges bent enee of two subscribing witnesses.

outwardly and their inner edges bent in- BIRGER LJUNGSTRGM. 5 werd1y,b0th the inner and the outer edges be- Witnesses:

ing thicker than the plate itself nearest said. E. RXBERG,

edges. KOUR DAHLQUIST. 

